HILDCROA BX31 Sports Wireless Earbuds, 75-Hour Playtime, LED Display, IPX7

For workouts that call for a secure in-ear fit and music between charges, the HILDCROA BX31 sports earbuds combine flexible ear hooks with a charging case that provides up to 75 hours of total playtime. Bluetooth 5.3 supports wireless listening and calls with compatible phones and tablets. An LED display makes it easy to check battery levels before heading out.

Size & fit

The BX31 uses an in-ear design with TPE ear hooks to help keep the earbuds in place during running, gym sessions, and other workouts. Three included ear tip sizes let you choose a fit that feels snug and creates a seal for listening. A lighter, ergonomic shape is designed for extended wear, while the hooks add a sport-focused alternative to earbuds that rely on an in-ear fit alone. For a workout where movement matters, wouldn’t it be useful to have both a tip fit and hooks helping hold each earbud in position?

The IPX7 waterproof rating and protective coating make these earbuds suited to sessions where sweat or getting wet is part of the activity. Use the touch controls to play or pause audio, change tracks and volume, answer or reject calls, or activate a voice assistant without reaching for your phone.

Why it’s worth it

The case extends listening time to 75 hours in total, with over 8 hours of playtime from a single charge. That combination suits a routine of workouts, commutes, and everyday listening, while the LED digital display helps you keep track of the earbuds’ and case’s battery levels. When it’s time to recharge, the Type-C connection supports a full charge in 1.5 hours.

For music, 13mm speaker drivers are designed to deliver bass, midrange, and treble. For calls, the built-in microphone uses ENC noise reduction to help separate your voice from surrounding sound. This is a practical distinction for people who want earbuds that can handle both a training playlist and hands-free conversations. Bluetooth 5.3 provides a wireless connection with a stated range of up to 10m, giving you room to move around while your connected device stays nearby.

Worth considering if you want sports-oriented in-ear earbuds with ear hooks, touch controls, and a case that shows its charge level. Their feature set brings workout listening and everyday phone use together in one compact pair.

Specifications

• Brand: HILDCROA
• Model: BX31
• Type: In-ear wireless sports earbuds
• Color: Foggy Black
• Connectivity: Bluetooth 5.3
• Bluetooth range: Up to 10m
• Speaker drivers: 13mm
• Playtime: Over 8 hours per charge, up to 75 hours with the charging case
• Charging: Type-C, full charge in 1.5 hours
• Water resistance: IPX7
• Controls: Touch controls for playback, calls, volume, track selection, and voice assistant
• Microphone: Built-in mic with ENC noise reduction
• Fit: TPE ear hooks and three ear tip sizes

Should you buy it?

Choose the BX31 if your priority is a workout-ready fit with hooks, water protection, and enough combined playtime to carry listening beyond a single session. The LED battery display and touch controls also make day-to-day use easier to manage, while Bluetooth connectivity supports compatible phones and tablets. It’s a useful match for runners and gym-goers who want one pair for active listening and calls, rather than earbuds focused only on stationary use.